IRDMB — Iridium Communications Inc Institutional Holders · Q2 2026
Who owns Iridium Communications Inc (IRDMB)? 3 institutions reported holding $19.65M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: IMC-Chicago, LLC ($10.3M), Group One Trading LLC ($6.9M), Simplex Trading, LLC ($2.4M).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $10.3M | 188,100 | Added |
| 2 | GROUP ONE TRADING LLC | $6.9M | 126,200 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $2.4M | 43,900 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30